20474162009

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1\times {\mathrm{829}}^1$

素因数の和:1174

約数の個数: 48

約数和(自身を含む): 25070515200

約数和(自身を除く): 4596353191

約数列:

[1, 7, 31, 49, 71, 217, 229, 497, 829, 1519, 1603, 2201, 3479, 5803, 7099, 11221, 15407, 16259, 25699, 40621, 49693, 58859, 107849, 113813, 179893, 189841, 347851, 412013, 504029, 796691, 1259251, 1328887, 1824629, 2884091, 3528203, 5885071, 9302209, 12772403, 13478711, 24697421, 41195497, 89406821, 94350977, 288368479, 417840041, 660456839, 2924880287, 20474162009]

約数ペア:

[(1, 20474162009), (7, 2924880287), (31, 660456839), (49, 417840041), (71, 288368479), (217, 94350977), (229, 89406821), (497, 41195497), (829, 24697421), (1519, 13478711), (1603, 12772403), (2201, 9302209), (3479, 5885071), (5803, 3528203), (7099, 2884091), (11221, 1824629), (15407, 1328887), (16259, 1259251), (25699, 796691), (40621, 504029), (49693, 412013), (58859, 347851), (107849, 189841), (113813, 179893)]